As narcissistic supply waxes and wanes, the narcissist goes through cycles: a depressive phase is followed by hibernation for recuperation purposes and then the emission of a ânarcissistic signalâ: a call for new narcissistic supply.
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase the print book, or 16 e-books, or 3 DVDs with 16 hours of video lectures on narcissists, psychopaths, and abuse in relationships: http://www.narcissistic-abuse.com/thebook.html)